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Mechanical Engineering Quiz 24

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Mechanical Engineering Quiz 24

1 / 50

As the value of index ??? is decreased, the volumetric efficiency will___________________?

2 / 50

Pick up the correct statement from the following?

3 / 50

Cupola produces following material__________________?

4 / 50

An event is indicated on the network by_________________?

5 / 50

Euler?s dimensionless number relates the following__________________?

6 / 50

The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is__________________?

7 / 50

When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be__________________?

8 / 50

Which type of boiler can meet rapid changes of load____________________?

9 / 50

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm2 and a volume of 0.039 m3 at 150 kg/cm2. The bulk modulus of elasticity of liquid is___________________?

10 / 50

The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80? for_________________?

11 / 50

The ratio of specific weighf/h.p. of gas turbin and I.C engines may be typically of the order of_______________________?

12 / 50

Unit of thermal conductivity in M.K.S. units is ___________________?

13 / 50

It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called______________________?

14 / 50

In fast breeder reactors___________________?

15 / 50

Scavenging is usually done to increase__________________?

16 / 50

Which of the following is a case of steady state heat transfer ___________________?

17 / 50

Pick up the false statement ?

18 / 50

The critical activity has____________________?

19 / 50

Cavitation will begin when__________________?

20 / 50

Method of governing used in petrol engine is________________?

21 / 50

The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as________________?

22 / 50

If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle___________________?

23 / 50

Mechanical equivalent of heat for 1 kcal or Joule?s equivalent is equal to_________________?

24 / 50

The size of a boiler drum in pulverised fuel fired boiler,as its size and capacity, (steam pressure and flow ratings) increase __________________?

25 / 50

For economical operation of a nuclear plant__________________?

26 / 50

For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately________________?

27 / 50

A typewriter mechanism has 7 number of binary joints, six links and none of higher pairs. The mechanism is________________?

28 / 50

The inlet value of a four stroke cycle I.C engine remains open for nearly___________________?

29 / 50

It is required to produce large amount of steam at low pressure. Which boiler should be used ?

30 / 50

Machining properties of steel are improved by adding___________________?

31 / 50

Mass flow ratio of NH3 in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of___________________?

32 / 50

Which of the following is the unit of kinematic viscosity _________________?

33 / 50

The function of injector used in small steam plants is to________________?

34 / 50

The force acting along the circumference will cause stress in the walls in a direction normal to the longitudinal axis of cylinder; this stress is called___________________?

35 / 50

Which of the following organisation is preferred in automobile industry________________?

36 / 50

Machine screws are________________?

37 / 50

The percentage of carbon in low carbon steel is__________________?

38 / 50

According to Clausis statement of second law of thermodynamics___________________?

39 / 50

The capacity of induced draft fan compared to forced draft fan in a boiler is__________________?

40 / 50

Pressurised water reactor is designed________________?

41 / 50

Deaeration of feed water is carried out because it reduces ____________________?

42 / 50

The overall isothermal eiffciency of compressor is defined as the ratio of_______________?

43 / 50

Clearance volume in actual reciprocating compressors is essential __________________?

44 / 50

The absolute acceleration of any point P in a link about center of rotation 0 is___________________?

45 / 50

Two systems shall be dynamically equivalent when____________________?

46 / 50

Which of the following is a fire tube boiler________________?

47 / 50

In Vicker?s hardness testing, the pyramid indentor apex is__________________?

48 / 50

Klein?s construction can be used when_________________?

49 / 50

A pressure of 25 m of head of water is equal to_________________?

50 / 50

Highest pressure encountered in a refrigeration system should be________________?

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